Connection Problem

Hi All,
I have successfully flashed the latest version (1v85) of Espruino and result can be found below. However; I can not connect to my nodeMCU either using Espruino Web IDE or with this command "screen /dev/ttyUSB0 115200".
When I try screen command I seen no error it just says "[screen is terminating]".

Does anyone have an idea what might be a problem?

esptool.py v1.2-dev
Connecting...
Running Cesanta flasher stub...
Flash params set to 0x004f
Writing 4096 @ 0x0... 4096 (100 %)
Wrote 4096 bytes at 0x0 in 0.4 seconds (90.3 kbit/s)...
Writing 462848 @ 0x1000... 462848 (100 %)
Wrote 462848 bytes at 0x1000 in 40.1 seconds (92.3 kbit/s)...
Writing 4096 @ 0x3fc000... 4096 (100 %)
Wrote 4096 bytes at 0x3fc000 in 0.4 seconds (90.5 kbit/s)...
Writing 4096 @ 0x3fe000... 4096 (100 %)
Wrote 4096 bytes at 0x3fe000 in 0.4 seconds (90.5 kbit/s)...
Leaving...

Disconnect usb and plug it in again then from the web ide set the serial speed to 115200 and connect.

I have already done what you said couple of times but still IDE shows me an error saying "connection failed!"

Try to connect with 57600, which is the default baudrate for first steps in Espruino.
At least you should see 2 lines with rst.....
Anyway, I had a problem flashing actual version on my ESP-01.
Going back for about a month, I found a running version (.76?)
Actual I create my own firmware without crypto (or without graphics) and that works fine.

I tried the baud rate 57600 unfortunately with no success :( In the meantime; I played with arduino IDE and everything is working. I do not really understand why I can't get Espruino worked, which is a little bit discouraging...
BTW; when I try to connect, web IDE is giving the following messages. Does it ring a bell?

>>> Connecting...
Set Slow Write = true
Unable to open device (connectionInfo=undefined)
ERROR: Unable to open device (connectionInfo=undefined)
>>> Connection Failed.

Update :
I have solved my problem. It seems Web IDE needs some special authorizations when it is working under linux. I can't still make it connect to the port but it works via TCP port. I followed the tutorial here .